42+(9x-4)=12x+8

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Solution for 42+(9x-4)=12x+8 equation:


Simplifying
42 + (9x + -4) = 12x + 8

Reorder the terms:
42 + (-4 + 9x) = 12x + 8

Remove parenthesis around (-4 + 9x)
42 + -4 + 9x = 12x + 8

Combine like terms: 42 + -4 = 38
38 + 9x = 12x + 8

Reorder the terms:
38 + 9x = 8 + 12x

Solving
38 + 9x = 8 + 12x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-12x' to each side of the equation.
38 + 9x + -12x = 8 + 12x + -12x

Combine like terms: 9x + -12x = -3x
38 + -3x = 8 + 12x + -12x

Combine like terms: 12x + -12x = 0
38 + -3x = 8 + 0
38 + -3x = 8

Add '-38' to each side of the equation.
38 + -38 + -3x = 8 + -38

Combine like terms: 38 + -38 = 0
0 + -3x = 8 + -38
-3x = 8 + -38

Combine like terms: 8 + -38 = -30
-3x = -30

Divide each side by '-3'.
x = 10

Simplifying
x = 10

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